Yes, reading the Community Rules and FAQ are always a must when joining a new community. Other than that, however, it's really up to you.
There are quite a few sections in which you can voice your opinions around here, my friend. All you have to do is find a couple that interest you and you should be on your way. As I see you already have a number of posts, I assume you are grasping that concept already!
As long as you are not infringing upon the rules, you're free to do as you wish around here. Whether you want to post around, send some VM's, or just lurk. It's all up to you. Just remember to have fun with it!
Welcome to the Pokecommunity, BlueRose123.